| Name | Country | Market Cap (US$) |
|---|
| The Fizz Factor Game Studio | United States | Private |
| The GetPAID Corporation | United States | Private |
| The Hive Group | United States | Private |
| The Japan Research Institute Ltd. | Japan | Private |
| The Jobscope Corporation | United States | Private |
| The Kirchman Corporation | United States | Private |
| The KLI Learning Corporation | United States | Private |
| The Kodiak Group, Inc. | United States | Private |
| The Learning Company | United States | Private |
| The Learning Company (Wordstar) | United States | Private |
| The Learning Trust | United States | Private |
| The MacGregor Group, Inc. | United States | Private |
| The Mathworks Ltd | United Kingdom | Private |
| The MathWorks, Inc. | United States | Private |
| The Messaging Architects | Canada | Private |
| The Micron Group | United Kingdom | Private |
| The Mortgage Coach | United States | Private |
| The Nakoma Group | United States | Private |
| The Nikko System Center Ltd. | Japan | Private |
| The PowerTech Group, Inc. | United States | Private |
| The SSI Group, Inc. | United States | Private |
| The TOLIS Group, Inc. | United States | Private |
| The Wanbishi Archives Co., Ltd. | Japan | Private |
| The Weiland Financial Group, Inc. | United States | Private |
| TheBrain Technologies Corporation, Inc. | United States | Private |
| thePlatform for media, Inc. | United States | Private |
| Thera Spa | Italy | Private |
| think3, Inc. | United States | Private |
| ThinkFree Corporation | United States | Private |
| Thinking Tools, Inc. | United States | Private |
| ThinWEB Technologies, Inc. | Canada | Private |
| Thomson Professional & Regulatory, Inc. | United States | Private |
| Thor Technologies, Inc. | United States | Private |
| Thunderhead Ltd | United Kingdom | Private |
| Thursby Software Systems, Inc. | United States | Private |
| TIDAL Software, Inc. | United States | Private |
| Time Link International Corp. | United States | Private |
| TimeCentre, Inc. | United States | Private |
| TimeSpring Software Corporation | Canada | Private |
| TimesTen, Inc. | United States | Private |
| TimeSys Corporation | United States | Private |
| TimeTrade Systems Inc. | United States | Private |
| Timogen Systems, Inc. | United States | Private |
| Tiny Software, Inc. | United States | Private |
| Titan Digital Corporation | Canada | Private |
| TLIC Worldwide, Inc. | United States | Private |
| TMA Global Limited | United Kingdom | Private |
| TMA Resources, Inc. | United States | Private |
| TMSS Liquidation, Inc. | United States | Private |
| TMW Systems, Inc. | United States | Private |
| Tohoku OKI Electric Co., Ltd. | Japan | Private |
| Tokei Computer Co., Ltd. | Japan | Private |
| Tom Snyder Productions | United States | Private |
| Tomax Corporation | United States | Private |
| Tomoye Corporation | Canada | Private |
| Tonic Software, Inc. | United States | Private |
| Top Down Systems Corporation | United States | Private |
| TOPAZ Technologies, Inc. | United States | Private |
| TopCoder, Inc. | United States | Private |
| Topics Entertainment, Inc. | United States | Private |
| Topio, Inc. | United States | Private |
| Toshiba Advanced System Corporation | Japan | Private |
| Toshiba Information Systems (Japan) | Japan | Private |
| Totality Corporation | United States | Private |
| Totobit Informatica Software E Sistemi Spa | Italy | Private |
| Touch Clarity Ltd. | United Kingdom | Private |
| Tovaris, Inc. | United States | Private |
| Tracer Technologies | United States | Private |
| Traction Software, Inc. | United Kingdom | Private |
| TRADOS, Inc. | United States | Private |
| TrailBlazer Systems, Inc. | United States | Private |
| Trancentrix, Inc. | United States | Private |
| Trandes Corporation | United States | Private |
| Trans-enterprise Integration Corporation | United States | Private |
| Transcender LLC | United States | Private |
| Transcentive, Inc. | United States | Private |
| TransCore Holdings Inc. | United States | Private |
| TransEDA Technology Ltd. | United Kingdom | Private |
| Transentric LLC | United States | Private |
| Transform Logic Corporation | United States | Private |
| Transformation Processing | United States | Private |
| Transition Analysis Comp. | United States | Private |
| Transitive Ltd | United Kingdom | Private |
| Transoft International, Inc. | United States | Private |
| Transora, Inc. | United States | Private |
| Transparent Language, Inc. | United States | Private |
| Tranzact Technologies Inc | United States | Private |
| Trayport Limited | United Kingdom | Private |
| Treepoint Ag | Switzerland | Private |
| TREEV LLC | United States | Private |
| Trellix Corporation | United States | Private |
| Trendium, Inc. | United States | Private |
| Trex Enterprises Corporation | United States | Private |
| TriActive, Inc. | United States | Private |
| Tribute Inc. | United States | Private |
| Tridion B.V. | Netherlands | Private |
| Tridium, Inc. | United States | Private |
| Trigenix Ltd. | United Kingdom | Private |
| Trilogy, Inc. | United States | Private |
| Trinagy, Inc. | United States | Private |
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